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authorWolfram Sang <wsa@the-dreams.de>2018-12-11 20:58:20 +0100
committerWolfram Sang <wsa@the-dreams.de>2018-12-11 20:58:20 +0100
commit66693960f574aa830986e1603657af36423b24eb (patch)
tree035aae54d64d79e514f95e18cc3dcf411a98c55e /net/sctp/chunk.c
parent3ca3f86f7f4856222a8b697d60d32717160a1a1b (diff)
parent40e020c129cfc991e8ab4736d2665351ffd1468d (diff)
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Merge tag 'v4.20-rc6' into i2c/for-5.0
Linux 4.20-rc6
Diffstat (limited to 'net/sctp/chunk.c')
-rw-r--r--net/sctp/chunk.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index ce8087846f05..d2048de86e7c 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -191,6 +191,12 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
* the packet
*/
max_data = asoc->frag_point;
+ if (unlikely(!max_data)) {
+ max_data = sctp_min_frag_point(sctp_sk(asoc->base.sk),
+ sctp_datachk_len(&asoc->stream));
+ pr_warn_ratelimited("%s: asoc:%p frag_point is zero, forcing max_data to default minimum (%Zu)",
+ __func__, asoc, max_data);
+ }
/* If the the peer requested that we authenticate DATA chunks
* we need to account for bundling of the AUTH chunks along with